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Finding the Fourth Proportional to 1,416,569.44, 1,954,808.86 and 771,975.92

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Solution

The fourth proportional to 1,416,569.44, 1,954,808.86 and 771,975.92 is: 1,065,295.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,416,569.44 : 1,954,808.86 = 771,975.92 : x
  2. Step 2: Convert to fraction form
    1,416,569.44/1,954,808.86 = 771,975.92/x
  3. Step 3: Cross multiply
    1,416,569.44x = 1,954,808.86 × 771,975.92
  4. Step 4: Simplify right side
    1,416,569.44x = 1,509,065,368,122.65
  5. Step 5: Solve for x
    x = 1,509,065,368,122.65/1,416,569.44
  6. Step 6: Final answer
    x = 1,065,295.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.